Montague County Sheriff Marshall Thomas was called at 7:19 p.m., and he had the deputies start the warrant process based on a perceived threat.

Boyd, of Nocona Hills, was arrested at 10:25 p.m. on a complaint of terroristic threat – a third-degree felony. A criminal trespass warning was later made for Boyd, prohibiting him from being on any Nocona ISD properties.

“We take this threat very serious, and we are going to act very quickly for everyone’s good in a situation like this,” Holcomb said. “It has been handled.”

NISD Superintendent David Waters was very happy at the speed in which the situation was handled by the Nocona police and the Montague County Sheriff’s Office.

“When something happens on Facebook or Twitter, it doesn’t take long to spread, and Sunday word was moving faster than we could react,” Waters said. “I was very happy with how quickly the police and sheriff reacted. By the time the kids got to school on Monday, the situation was resolved.”

Thomas said things went pretty quickly, under the circumstances. Both departments were on campus Monday and Tuesday providing a uniformed presence.

“I think they appreciated us being on campus during the day," Thomas said. "We had some calls with concerns about the track meet, so several officers attended."

Boyd was released Monday afternoon on $20,000 bail. His conditions of release included that he may not communicate directly or indirectly with the students of NHS, go within 250 feet of the high school, and may not be in possession of any firearms, drugs or alcohol.

The teen was also arrested earlier this month for driving while intoxicated on Feb. 17.

The administrator’s office at the school was inundated with phone calls from concerned parents throughout Monday and some who felt they were not informed quickly enough.

On Monday, the school district released a letter to parents on the NISD webpage, on Facebook, and sent a physical copy home with students informing them of Sunday’s events.

Waters said their first concern is to know their kids are as safe as possible when they drop them off.

“The administrators, teachers and law enforcement worked swiftly," Waters said. "The situation was handled as well as it could have been with its occurrence on Sunday."

"When it developed, the police were already aware at the same time we were. Today (Tuesday), they have been handling things on their end, and we are doing the same."

The alleged threat came just 12 days after a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, where 17 students and staff were killed.